Regensburg 2004 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 46: Poster

DY 46.15: Poster

Donnerstag, 11. März 2004, 16:00–18:00, Poster D

Velocity fluctuations in ratchets — •Lukasz Machura^1,2 and Peter Hänggi¹ — ¹Theoretishe Physik I, Institut für Physik, Universität Augsburg, Germany — ²Department of Theoretical Physics, Institute of Physics, University of Silesia, Poland

The quantity of foremost interest in the context of transport in periodic systems, like Brownian ratchets, is the mean velocity of the particle. However, the quality of the transport depends also on some other characteristics like effective diffusion or shape of the potential. In this work we use simulations to investigate the velocity correlation function in the inertia Brownian ratchet. The connection between its behavior and the optimal transport conditions is presented.